Maria walks 12 miles in 3 hours how many miles dose she walk per hour

How do you summarize data in a two-way frequency table?

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Which rotation about its center will carry a regular hexagon onto itself